A MAN extradited from Tasmania over historic child sex offences will face court on Thursday.

Newcastle-based Child Abuse Squad detectives began investigating in 2010 after reports two girls then aged eight and 10 were sexually assaulted in the Hunter in 2006.

The Child Abuse Squad is comprised of detectives who are specially trained to investigate crimes against children, including sexual assault, physical abuse and serious cases of neglect.

In 2006 police were unable to locate a man they believed could assist with their inquiries.

Investigators followed information received this year to Launceston in Tasmania, where the man was believed to be living.

An arrest warrant was issued and the 35-year-old was apprehended with the help of Tasmanian police.

He faced court in Tasmania on Tuesday where police successfully applied for his extradition back to the mainland.

He was flown to Williamtown and taken to Raymond Terrace police station where he was charged with seven counts of sexual intercourse with person under the age of 10 and two counts of assault with intent to have sexual intercourse with child under 10.

He was refused bail to face Maitland Local Court.

Anyone with concerns about suspected child abuse or exploitation should call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: https://nsw.crimestoppers.com.au/.